Weaving in the end of your work stops it from unraveling and can be completely invisible if done neatly. To start with I weave in along the back of the work in the opposite direction that I was knitting. You want to mimic the path of the stitch so that it is as invisible as possible.
One of the knitters, Kathy, from one of my KALs says: "work the tails from a smile into the frown in row above, then follow that frown around down into the smile of the row below" which sounds like a great way of remembering it!
Here is a visual of that in action:
![weaving in ends](https://cdn.shopify.com/s/files/1/1710/8279/files/IMG_1296-min_600x600.jpg?v=1677238960)
Up through 'smile' on top row.
![weaving in ends](https://cdn.shopify.com/s/files/1/1710/8279/files/IMG_1298-min_600x600.jpg?v=1677238993)
Follow 'frown' on left and into row below to the right.
![weaving in ends](https://cdn.shopify.com/s/files/1/1710/8279/files/IMG_1300-min_600x600.jpg?v=1677239033)
Now follow through to the next stitch and go back up to the last top stitch.
![weaving in ends](https://cdn.shopify.com/s/files/1/1710/8279/files/IMG_1302-min_600x600.jpg?v=1677239057)
Then just continue to work that across several stitches
.
When you've done that for a few stitches then pull the tail down diagonally and cut it with a little left. It sometimes helps to open the very end out so that it's less likely to pop out from your work. I sometimes wait until after a shawl is blocked to cut tails as I find aggressive blocking makes them very likely to come out again.